Home / 1,638.19-2,456.68-597.85

Finding the Fourth Proportional to 1,638.19, 2,456.68 and 597.85

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Solution

The fourth proportional to 1,638.19, 2,456.68 and 597.85 is: 896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638.19 : 2,456.68 = 597.85 : x
  2. Step 2: Convert to fraction form
    1,638.19/2,456.68 = 597.85/x
  3. Step 3: Cross multiply
    1,638.19x = 2,456.68 × 597.85
  4. Step 4: Simplify right side
    1,638.19x = 1,468,726.14
  5. Step 5: Solve for x
    x = 1,468,726.14/1,638.19
  6. Step 6: Final answer
    x = 896.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.